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Microsoft .NET Framework 4.5
The .NET Framework 4.5 includes significant language and framework enhancements for C#, Visual Basic, and F# (so that you can more easily write asynchronous...
What is .NET Framework? A software development framework | .NET
.NET Framework is a software development framework for building and running applications on Windows. Learn about its architecture, components, history...
Download .NET Framework 3.5 SP1
Downloads for building and running applications with .NET Framework 3.5 SP1. Get web installer, offline installer, and language pack downloads for .NET...
Microsoft .NET Framework 3.5
New classes in .NET Framework 3.5 base class library (BCL) that address many common customer requests. IMPORTANT: If you have installed earlier pre-release...
.NET Framework release information - .NET Framework | Microsoft Learn
The .NET Framework updates include cumulative security and reliability improvements. We recommend that you apply updates as part of your regular maintenance...
.NET Framework system requirements - .NET Framework | Microsoft Learn
Find out about the hardware, operating system, and software requirements to install .NET Framework 4.5 and later versions.
.NET and .NET Framework July 2026 servicing releases updates
Welcome to our combined .NET servicing updates for July 2026. Let’s get into the latest release of .NET & .NET Framework, here is a quick overview of what’s...
Microsoft .NET Framework Repair Tool is available
The .NET Framework Repair Tool provides an option to repair the versions of .NET Framework that are installed on the computer (step 3 of the process in the...
Microsoft Update Catalog
Updates 7/8/2025 n/a 47.7 MB49966362 2025-07 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 21H2 for x64 (KB5056577) Windows 10...
Microsoft .NET Framework 4.7.2 offline installer for Windows
About Microsoft .NET Framework 4.7.2 Microsoft .NET Framework 4.7.2 is a highly compatible, in-place update to .NET Framework 4, 4.5, 4.5.1, 4.5.2, 4.6...
Browse all .NET versions to download | .NET
Official .NET downloads for Linux, macOS, and Windows. .NET is a free, cross-platform, open-source developer platform for building many different types of...